What is open source software?

Open source software refers to software whose source code is publicly available and can be freely used, modified, and distributed, typically under an open source license (such as the GPL, MIT, or Apache). Users can review the code and contribute improvements or customizations.

Is open source software free?

Most open source software is free to use, but "free" refers to freedom, not zero cost. There may be fees for support, maintenance, or commercial versions. Companies may pay for deployment or services of open source software.

Is open source software secure?

Open source software is theoretically more secure because its code is transparent, allowing vulnerabilities to be quickly discovered and fixed by the community. However, security depends on community activity, maintenance frequency, and user configuration. Inactive projects may be risky.

What is the difference between open source and proprietary software?

• Open source software: The source code is publicly available, freely modifiable and distributable, and governed by an open source license.
• Proprietary software: The source code is closed; users can only use it but not modify it, requiring a license.

Who maintains open source software?

Open source software is maintained by developer communities, volunteers, companies, or foundations (such as the Apache Software Foundation and the Linux Foundation). Large projects (such as Linux and Apache) are often sponsored by companies.

Why do companies support open source software?

Companies support open source to reduce development costs, accelerate innovation, attract developer talent, build ecosystems, or promote related services. For example, Red Hat profits from support services, and Google expands its influence through Android.

What are some common examples of open source software?

• Operating systems: Linux, Ubuntu
• Browsers: Firefox, Chromium
• Servers: Apache, Nginx
• Development tools: Git, VS Code
• Databases: MySQL, PostgreSQL

How to get involved in open source projects?

• Beginners: Read documentation, report bugs, and submit small patches.
• Developers: Contribute code and participate in discussions, using platforms like GitHub and GitLab.
• Non-technical people: Translate, write documentation, and promote projects.